Solar light bulb

Patent · Tue Jul 26 04:00:00 EDT 1983

OSTI ID:5493547

Smith, D A

A system for generating light directly using solar energy is provided herein. It includes a concentrator and accumulator for the sun's rays to generate a concentrated beam of visible solar radiation. A distributor shaft is provided for distributing the beam of visible solar radiation. A fork is provided in the distributor shaft to define a plurality of branch lines, each provided with a mirror at the intersection to direct the beam down the respective branch line to permit parallel fractions of the beam to be reflected off the respective mirrors and to pass down the respective branch line. A solar bulb is provided including a double walled upper bulbous portion including the inlet from the branch line and a pair of heat outlet tubes, and a double walled lower bulbous portion, the upper portion thereof being divergently reflective, with the lower portion having walls which are either transparent or translucent to provide greater light diffusion, and the space between the two walls being maintained under vacuum to provide heat insulation values. A structure is provided within the solar bulb for the absorption and radiation of the concentrated beam of visible solar radiation. Preferably structure is provided connected to the solar bulb to draw in outside air in the summer to direct it past the solar bulb and to air vent hot air produced at the solar bulb to the outside, thereby providing light with minimal heat in the summer. The same structure is operated in the winter to draw in household air to direct it past the solar bulb and to recirculate such heated air produced at the solar bulb to the house, thereby providing light and heat in the winter.

• Assignee: EDB-84-021123
• Patent Number(s): US 4394860
• OSTI ID: 5493547
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140909* -- Solar Thermal Utilization-- Miscellaneous Solar Applications-- (1980-)
DESIGN
ELECTROMAGNETIC RADIATION
ENERGY SYSTEMS
LIGHT BULBS
LIGHTING SYSTEMS
MIRRORS
RADIATIONS
VISIBLE RADIATION